Numerous academic research constructs have been developed regarding the question of which factors are important for a successful career choice. This article provides a summary of these constructs from a career research perspective. It also considers the integrative construct of “career choice readiness”, which encompasses the core elements of previous constructs. A career resource questionnaire is presented for the purpose of measurement. This enables all key areas of career choice readiness to be efficiently recorded. An explanation is also provided of how the measurement instrument presented can be used in practice. The article concludes by showcasing the initial findings to emerge from a major research project on development of career choice readiness conducted in Switzerland.